Title: Printing machine and calculating method of scanning synchronous data
Application Number: 98115231 Application Date: 1998.06.24
Publication Number: 1217484 Publication Date: 1999.05.26
Approval Pub. Date: 2004.06.09 Granted Pub. Date: 2004.06.09
International Classifi-cation: G03G15/04
Applicant(s) Name: Samsung Electronics Co., Ltd. Address:
Inventor(s) Name: Kim Nam-Ryong
Attorney & Agent: li xiaoshu
Abstract:
    A printer and a method for calculating scanning synchronization data are provided. The printer includes a plurality of rollers; a photoreceptor belt having a transparent band continuously formed in the vicinity of one edge of the photoreceptor belt and at least one transparent window, a plurality of laser scanning units, photodetectors for detecting beams having passed through the transparent band and transparent window, and a laser scanning controller for controlling the laser scanning units according to signals output from the photodetectors. Also, the method for calculating scanning synchronization data for the printer includes the steps of a) adjusting the driving of the laser scanning units, so that the beams emitted from the laser scanning units arrive at the photoreceptor belt, b) calculating distances among scanning lines, from information on the timings at which the signals sequentially output from the photodetectors having passed through the transparent window, and c) calculating scanning synchronization data from the distances among the scanning lines.
Time: 7